Schorl Foit F F American Mineralogist 74 (1989) 422-431 Crystal chemistry of alkali-deficient schorl and tourmaline structural relationships Locality: Jack Creek deposit, near Basin, Montana, USA _database_code_amcsd 0001229 15.963 15.963 7.148 90 90 120 R3m atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) NaX 0 0 .2215 .55 0.0268 0.0268 0.0207 0.0134 0 0 FeY .12292 .06146 .6297 .587 0.0073 0.0044 0.0125 .00365 -.0039 -.00195 AlY .12292 .06146 .6297 .297 0.0240 0.0237 0.0083 0.0120 0.0036 .0018 MgY .12292 .06146 .6297 .110 0.0240 0.0237 0.0083 0.0120 0.0036 .0018 TiY .12292 .06146 .6297 .006 0.0240 0.0237 0.0083 0.0120 0.0036 .0018 AlZ .29800 .26134 .6094 0.0049 0.0056 0.0047 0.0026 -.0002 .0007 SiT .19180 .18981 0 .977 0.0055 0.0056 0.0060 0.0026 -.0002 -.0006 AlT .19180 .18981 0 .023 0.0055 0.0056 0.0060 0.0026 -.0002 -.0006 B .1101 .2202 .4535 0.0072 0.0093 0.0085 .00465 .0000 .0000 O1 0 0 .7771 .48 0.0339 0.0339 0.0107 .01695 0 0 OH1 0 0 .7771 .38 0.0339 0.0339 0.0107 .01695 0 0 F1 0 0 .7771 .14 0.0339 0.0339 0.0107 .01695 0 0 O2 .06166 .12332 .4871 0.0217 0.0086 0.0101 0.0043 .00035 .0007 O3 .2666 .1333 .5083 0.0222 0.1199 0.0074 0.0111 .0007 .00035 O4 .09380 .18760 .0694 0.0081 0.0159 0.0104 .00795 -.0003 -.0006 O5 .1877 .09385 .0922 0.0153 0.0087 0.0105 .00765 .0010 .0005 O6 .1971 .1867 .7754 0.0106 0.0105 0.0053 0.0049 -.0002 -.0006 O7 .2854 .28601 .0783 0.0079 0.0072 0.0081 0.0022 .0003 -.0011 O8 .2099 .2706 .4397 0.0068 0.0116 0.0107 0.0048 .0008 .0020 H3 .268 .134 .398 .047